RFR(S) 8026894: Improve VerifyError message about overriding a final method

[harold seigel]

Hi,

Please review this small enhancement for bug 8026894.  This change adds 
the class name to the Exception message when a method in a subclass 
overrides a final method in a super class.  Here's a sample old message, 
followed by the improved message:

    Exception in thread "main" java.lang.VerifyError: class Overrider
    overrides final method m.(Ljava/lang/String;)V

    Exception in thread "main" java.lang.VerifyError: class Overrider
    overrides final method pkg.HasFinal.m(Ljava/lang/String;)V


Open webrev:  http://cr.openjdk.java.net/~hseigel/bug_8026984/

Bug:  https://bugs.openjdk.java.net/browse/JDK-8026894

The fix was tested with the JCK lang and vm tests, the default method 
tests, the UTE verifier and quick tests, and the JTREG hotspot tests.

Thanks, Harold